a752c7ab
 elopes
add first test an...
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/*
* Copyright (C) 2016 OTA keys S.A.
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup sys_can_dll
* @{
*
* @file
* @brief Definitions of low-level CAN DLL interface
*
* @author Vincent Dupont <vincent@otakeys.com>
* @author Toon Stegen <toon.stegen@altran.com>
*/
#ifndef CAN_DLL_H
#define CAN_DLL_H
#ifdef __cplusplus
extern "C" {
#endif
#include "can/common.h"
#include "can/pkt.h"
#include "can/device.h"
#include "thread.h"
/**
* @brief Initialize the CAN DLL
*
* @return 0 on success
*/
int can_dll_init(void);
/**
* @brief Register a CAN device into the DLL
*
* This function must be called by the device thread to register the device into the DLL
*
* @param[in] candev the candev to register
*
* @return interface number on success
* @return -ENODEV if ifnum is invalid
*/
int can_dll_register_candev(candev_dev_t *candev);
/**
* @brief Dispatch a received frame
*
* This function is used to send a message to the DLL thread when a @p frame is received
* from the device identified by its @p pid
*
* @param[in] frame the received frame
* @param[in] pid the pid of the receiver device
*
* @return 0 on success
* @return -ENOMEM if the message can not be sent
*/
int can_dll_dispatch_rx_frame(struct can_frame *frame, kernel_pid_t pid);
/**
* @brief Dispatch a tx confirmation
*
* This function is used to send a message to the sender thread when the
* @p pkt has been sent correctly.
*
* @param[in] pkt the pkt which has been sent
*
* @return 0 on success
* @return -ENOMEM if the message can not be sent
*/
int can_dll_dispatch_tx_conf(can_pkt_t *pkt);
/**
* @brief Dispatch a tx error
*
* This function is used to send a message to the sender thread when the
* @p pkt has not been sent correctly
*
* @param[in] pkt the pkt which has not been sent correctly
*
* @return 0 on success
* @return -ENOMEM if the message can not be sent
*/
int can_dll_dispatch_tx_error(can_pkt_t *pkt);
/**
* @brief Dispatch RX error from a device
*
* Dispatch RX error from a device to receivers threads
* which have subscribed to frames on that interface
*
* @param[in] pid the device thread pid
*
* @return 0 on success
*/
int can_dll_dispatch_bus_off(kernel_pid_t pid);
#ifdef __cplusplus
}
#endif
#endif /* CAN_DLL_H */
/** @} */
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